Add 'self_check' runtime for running self-checking unit tests

pkg/kernel/test/verify_self_check.dart

 // Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
+
 import 'package:kernel/kernel.dart';
 import 'package:kernel/verifier.dart';
 
-main() {
-  Program program = loadProgramFromBinary('test/data/dart2js.dill');
-  CheckParentPointers.check(program);
+import 'self_check_util.dart';
+
+main(List<String> args) {
+  runSelfCheck(args, (String filename) {
+    verifyProgram(loadProgramFromBinary(filename));
+  });
 }